The undersigned hereby certifies that the Quarterly Report on Form 10-Q of USANA Health Sciences, Inc. for the period ended March 30, 2019 as filed May 7, 2019 with the Securities and Exchange Commission, fully complies with the requirements of Section 13(a) or 15(d) of The Securities Exchange Act of 1934 (15 U.S.C. 78m) and that the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of USANA Health Sciences, Inc.